Ring-testing machine



Feb, 20, 1923.

w.1. BENOIT ET AL. RING TESTING MACHINE.

2 SHEETSSHEET I.

FILED JULY 16,1921.

WVE/TUREB 7' TURNEZ/S w. J. BENO'IT ET AL.

RING TESTING MACHINE.

Feb. 20, 1923.

FILED JULY 16,1521.

2 SHEETS-SHEET 2- memes isnnorr, or; Dene ame-mememommaf f'A pplic-ation filed iui as,

To all whom it may concern: Be it known that we, WILFRED J. BnNorr,

' of Dracut, and Gnonen L. 'Prnncmof Lowell, in the county of Middlesex and Stateof 3 Massachusetts, citizens ofthe United'Statesf new and useful Improveof which,

have invented a I ment in 1 R ng-Testing NIELClllllBS, the following is a spec fication.

.10 which shall be absolutely true is well known among spinners and the makers of spinning machinery, but it also well known that in the finishing of a ring especially in l'1ar den'- ing it the ring often becomes distorted.

suflicient to cause thering to do imperfect work even if the distortion is so slight that it now in use.

Our invention relates to a machine for testing a ring and indicating suchim'perfections more accurately than heretofore, s an d'it will be understood by reference to the drawings in. which it is shown in its preferred form. r I I J Flgure'l'ls a front elevation of'a machine embodying our. invention showing a rii1g- 1 in position'to undergo testy v i Fig. 2' is an elevation of the ring-holding .30 mechanism, enlarged, and 1 j FigsQS and 4t are enlarged sections on lines 3-3 and 44 of Fig.1. s 1 is an instrument for. measuring thicknesses, for example, of paper or the like. Such machines are well known and the par ticularjtype oii machine which we have utilized in carrying out our invention is a gauge made. to measure 1/1000 of an inch, for which patent was granted to J. Logan, August 21, 1883,.No. 283,627.

2 is the platen .of the machine and?) is the vertical rod which is adapted to rest upon the material the thickness of'which is l m en to be measured and which operates the dial hand 9 by means ofmechanism contalned' 1nv s the casing 14 to indicate on the dial 15 the movement of the hand. The figures on the a vertical plate carrying four ring holders of wh ch 5 and 6 are two stat onary members each. carrying afinger 7 which 1s adapted to shown in Fig. l andindicated in Fig. 2. 8 is a lever pivoted to the plate 4. at 41 '55 and carrying at one end a finger 71, "the as Al is em-: tim e TQW LL.

. ss ees w lifts the rod 3 change fr 7 ring is; thus centered by the fingers lv'hile the distortion is usually slight, it is.

cannot be perceived by a'ny'ordinary method" inch, it

accuracies in the 1t. is turned.

'seriarn. 435,212,

other. endjextending uncle'rtlie rod 3; This lever being. moved outof its normal position" hand 9 on the, dial 15'and thus indicates any om'norma-l in" the; position of: the 101s a slidingh'older also carrying a lever.-

finger .72 and held'in, up'peror gripping position by means oi the spring 12. Thenecessity for making spinning rings ring, and if on change. But if the surface isnot a me ,circle the finger-71 is n oved accordingly i the ring is turned so that the'hand 9 ismoved i and on observing. it may be determined whether the ring which is beingtested is up I to the standard or "notgj Avery slight'variationfl from a matheinatically true circle is allowable and 181181131. but our device ,7

shows .whetlier'that variation has been exceeded or not, lt will I be seen that every in 8 regularity in the internal dia-meterof the ring 'causesa movement of the lever 8 by which: the hand is movedn'a-nd, as this'hand' measures a lift of the rod of 1/1000- -of'an'= maybe very carefully determined. .7 VVhileyother measuring devices may, be substituted iiorthat'shown, weliave found the gauge above referred to well adapted for. I the'purpose, but Wedo not .dic'ate the ranged for. the measuring otvariations "the c rcular tormati'on of a 1'1ng. I dial may ndicate any desired units. 4: 1s

W'hat we claim as our invention is I l. Ina ring te'stmgnmclune, the combr nation with means for; holding the ring so 1 5 that; it may be tnrnedaboutits axis and engage the interior periphery of the ring as for centering said ring "as it is turned, of" means for indicating and measur ng any'inlnner face of the r ng as andconsequently' operates the .The 7 .finger 71 adjusts itself within the-fringand also the positionofthehand 9 in accordancewith the dimensions of the turning the ring its interior surface is a true circle, the position of the hand 9 does not. 75

will be seei'rthat' these;irregularities mean to lin'1it' 5 ourselves to the precise details of construc "tion aboye dcscribe'd,jas our invention pri vn'iarilyrelates toa movable member adapted 3 s when moved to operate a gauge and so inamount its movement, all air-. 0

2. Ina ring testing device, the combination with means for holding the ring so that it may be turned about its axis, of a pivoted lever having a portion adapted to engage the inner face of the ring as the latter is turned,

and means to indicate any movement of the lever about its pivot clue to lrregularities in the surface of the ring.

3. In a rlng testmg glevlce, the comblna- 10 tion with means for holding the ring so latter is turned, and a gauge actuated by the movement of the lever and arranged to in- 15' clioate any turning movement thereof due to irregularities in the surface of the ring.

- V XVILFAED J. BENOIT. GEORGE L. PIERCE. I 

